Armor Plates for Guard Cabins & Bunkers – Bullet & Blast Protection for Permanent and Mobile Security Structures

Applications Across Guard Cabins and Bunkers

Where are these armor plates used?

Common installation areas include

• Border Security Posts
• Police Guard Posts near High-Risk Zones
• Embassy Gatehouses and Access Control Cabins
• Military Outpost Guard Rooms
• Airport Perimeter Security Shelters
• Power Plant and Critical Infrastructure Guard Huts
• Riot Control Bunkers
• Mobile Security Cabins for Temporary Deployment

We supply both raw armor steel sheets for OEM fabricators and pre-cut, ready-to-install bunker wall panels for quick infrastructure projects.

Mechanical Properties & Grade Performance

Typical Mechanical and Ballistic Properties for Guard Cabin and Bunker Armor Plates:

Property	NIJ Level III	NIJ Level IV
Ballistic Threat	7.62×51mm M80 Ball	.30 caliber M2 AP (Armor Piercing)
Hardness	500 BHN Approx	Up to 550 BHN
Thickness Range	6 mm – 12 mm	10 mm – 20 mm
Multi-Hit Capability	Yes	Yes
Typical Formats	Flat wall panels, ceiling covers, floor blast plates	Same

For blast-resistant bunkers, we also offer thicker plates (up to 50 mm) and grades like MIL-DTL-46100 or S690QL for structural reinforcement.

For help choosing the right thickness and grade for your security cabin or bunker, contact our technical sales team today.

Technical Standards & Equivalent Grades

Our armor plates for guard cabins and bunkers conform to internationally recognized ballistic and structural protection standards, ensuring reliable multi-hit and blast resistance performance.

Standard	Description
NIJ 0101.06 / 0101.07 (Level III / IV)	U.S. standard for ballistic protection against rifle and AP threats
EN 1522 FB6 / FB7	European ballistic protection levels for building and infrastructure security
MIL-DTL-46100 / MIL-DTL-12560	U.S. military-grade high hardness steel for bunker and fixed position armor
STANAG 4569 Levels 2 / 3	NATO standard for light infrastructure and vehicle protection
Custom High Strength Grades	Available for blast-resistant bunker projects (like S690QL, S890QL)

If your project specifications mention a proprietary or international brand, we’ll help you with material equivalency and cross-reference support.

Thickness Range & Plate Sizes

We offer flexible thickness and size options to match the exact layout and design of your guard cabins or bunkers.

Parameter	Range
Thickness	6 mm to 50 mm, depending on threat level
Width	Up to 2500 mm
Length	Up to 12000 mm
Custom Cut-to-Size	Available
Pre-Drilled Mounting Holes	As per client drawings

For modular bunkers or mobile guard cabins, we also offer pre-fabricated panel kits with easy bolt-on assembly compatibility.

Heat Treatment & Toughness

All bunker and guard cabin armor plates from Hindustan Steel Corporation are supplied in a quenched and tempered condition, ensuring:

For blast-resistant cabins, we supply plates with high Charpy impact values and structural ductility.

Machining & Fabrication Advice

Due to their high hardness and ballistic rating, machining and fabrication of these armor plates requires special care.

Fabrication Tips:

Cutting:

• Use waterjet, plasma, or laser cutting for clean edges
• Minimize heat exposure on ballistic impact zones

Drilling:

• Use carbide-tipped drills with coolant flooding
• Prefer slow RPM, high feed rate techniques

Welding:

• Preheat required for thicker plates (>10 mm)
• Use low hydrogen welding electrodes
• Post-weld stress relieving (PWHT) recommended for structural bunkers

Forming/Bending:

• Cold forming possible for thinner gauges (up to 8 mm)
• Hot forming or modular design recommended for thicker panels

For faster installation, many clients prefer ordering pre-cut, pre-drilled, and pre-fabricated panel sets.

Why Buy from Hindustan Steel Corporation?

Specialized Supplier for Bunker and Guard Cabin Armor Steel in India
Quick Dispatch from Ready Stock
Custom Cutting, Profiling, and Bolt Hole Drilling as per Your Drawings
Experience Supplying to Defense, Police, and Embassy Security Projects
Export-Ready Packaging with Full Traceability and Certifications
Support for NIJ, EN 1522, MIL-DTL, and STANAG Conformance Projects
Competitive Pricing for Bulk Security Infrastructure Orders

We have successfully supplied armor steel for security cabins and bunkers installed in embassies, military bases, border posts, and critical infrastructure sites.